{"id":30232,"date":"2015-05-20T12:58:28","date_gmt":"2015-05-20T16:58:28","guid":{"rendered":"http:\/\/uqactualite.odev.ca\/?p=30232"},"modified":"2015-05-20T12:58:28","modified_gmt":"2015-05-20T16:58:28","slug":"experience-hemisphere-nord","status":"publish","type":"post","link":"https:\/\/www.uqac.ca\/uqactualites\/2015\/05\/20\/experience-hemisphere-nord\/","title":{"rendered":"Des chercheurs de l’UQAC participent \u00e0 une exp\u00e9rience \u00e0 l\u2019\u00e9chelle de l\u2019h\u00e9misph\u00e8re nord"},"content":{"rendered":"

Des chercheurs de l’UQAC ont particip\u00e9 \u00e0 une exp\u00e9rience \u00e0 l\u2019\u00e9chelle de l\u2019h\u00e9misph\u00e8re nord coordonn\u00e9e par des biologistes du Virginia Institute of Marine Science (VIMS) et de l\u2019institut Smithsonian. Mathieu Cusson, professeur au D\u00e9partement des sciences fondamentales de l\u2019UQAC est coauteur de cette \u00e9tude \u00e0 laquelle a \u00e9galement collabor\u00e9 St\u00e9phanie Cimon, \u00e9tudiante au doctorat en biologie<\/a> de l’UQAC. Selon les nouveaux r\u00e9sultats obtenus, la perte de biodiversit\u00e9 chez les petits animaux a un effet surprenant sur la sant\u00e9 des \u00e9cosyst\u00e8mes d\u2019herbiers de zost\u00e8res.<\/p>\n

Cette exp\u00e9rience scientifique sans pr\u00e9c\u00e9dent conduite simultan\u00e9ment sur 15 sites (dont un dans l\u2019estuaire du Saint-Laurent), montre que de petits herbivores aident au maintien des herbiers de zost\u00e8re marine en consommant des algues pouvant supplanter ces herbiers. La biodiversit\u00e9 aide donc les zost\u00e9rais \u00e0 \u00eatre un \u00e9cosyst\u00e8me plus efficace. Un des r\u00e9sultats inattendus est que cette biodiversit\u00e9 aurait un r\u00f4le encore plus important que la temp\u00e9rature ou qu\u2019une fertilisation exp\u00e9rimentale.<\/p>\n

La nouvelle \u00e9tude qui vient d\u2019\u00eatre publi\u00e9e dans Ecology Letters<\/em> (facteur d\u2019impact de 17.7) confirme non seulement le r\u00f4le de la biodiversit\u00e9, mais aussi l\u2019importance de conduire des exp\u00e9riences \u00e0 l\u2019\u00e9chelle globale et d\u2019\u00e9tablir un mod\u00e8le de collaboration unique tel que le r\u00e9seau Zostera Experimental Network (ZEN, www.zenscience.org<\/a>), qui inclut chercheurs et \u00e9tudiants de 7 pays.<\/p>\n

Le r\u00e9seau ZEN s\u2019agrandit maintenant \u00e0 25 institutions sur 50 sites, provenant des c\u00f4tes arctiques Russes en passant par le Mexique, la Cor\u00e9e du Sud et le Qu\u00e9bec. \u00ab\u00a0Je consid\u00e8re que les projets du r\u00e9seau ZEN offrent un des meilleurs exemples de coordination et de collaboration scientifique. Notre \u00e9tude a r\u00e9v\u00e9l\u00e9 que nos r\u00e9sultats, la biodiversit\u00e9 engendre la biodiversit\u00e9, provenant de la combinaison de nos efforts sont bien plus informatifs que si nous avions consid\u00e9r\u00e9 nos donn\u00e9es s\u00e9par\u00e9ment. Notre synergie prouve que notre travail collaboratif peut g\u00e9n\u00e9rer des r\u00e9sultats robustes applicables \u00e0 l\u2019\u00e9chelle de notre plan\u00e8te \u00bb, mentionne Mathieu Cusson.<\/p>\n

L\u2019\u00e9tude a \u00e9t\u00e9 support\u00e9e financi\u00e8rement par la National Science Foundation des \u00c9tats-Unis et par un financement des 15 partenaires dont le Conseil de recherches en sciences naturelles et l\u2019UQAC ont aid\u00e9 au financement pour le Qu\u00e9bec.<\/p>\n

Consultez le site Web pour plus de renseignements : http:\/\/zenscience.org\/documents\/<\/a><\/p>\n

Source :
\n<\/strong>Bureau des affaires publiques
\nUniversit\u00e9 du Qu\u00e9bec \u00e0 Chicoutimi
\n418\u00a0545-5011, poste 2350 \u25aa affaires_publiques@uqac.ca<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

Des chercheurs de l’UQAC ont particip\u00e9 \u00e0 une exp\u00e9rience \u00e0 l\u2019\u00e9chelle de l\u2019h\u00e9misph\u00e8re nord coordonn\u00e9e par des biologistes du Virginia Institute of Marine Science (VIMS) et de l\u2019institut Smithsonian. Mathieu Cusson, professeur au D\u00e9partement des sciences fondamentales de l\u2019UQAC est coauteur de cette \u00e9tude \u00e0 laquelle a \u00e9galement collabor\u00e9 St\u00e9phanie Cimon, \u00e9tudiante au doctorat en […]<\/p>\n","protected":false},"author":5,"featured_media":22074,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2],"tags":[826,224,217,827,828,829,772,830,831],"yoast_head":"\r\nDes chercheurs de l'UQAC participent \u00e0 une exp\u00e9rience \u00e0 l\u2019\u00e9chelle de l\u2019h\u00e9misph\u00e8re nord - UQACtualit\u00e9s<\/title>\r\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\r\n<link rel=\"canonical\" href=\"https:\/\/www.uqac.ca\/uqactualites\/2015\/05\/20\/experience-hemisphere-nord\/\" \/>\r\n<meta property=\"og:locale\" content=\"fr_CA\" \/>\r\n<meta property=\"og:type\" content=\"article\" \/>\r\n<meta property=\"og:title\" content=\"Des chercheurs de l'UQAC participent \u00e0 une exp\u00e9rience \u00e0 l\u2019\u00e9chelle de l\u2019h\u00e9misph\u00e8re nord - UQACtualit\u00e9s\" \/>\r\n<meta property=\"og:description\" content=\"Des chercheurs de l’UQAC ont particip\u00e9 \u00e0 une exp\u00e9rience \u00e0 l\u2019\u00e9chelle de l\u2019h\u00e9misph\u00e8re nord coordonn\u00e9e par des biologistes du Virginia Institute of Marine Science (VIMS) et de l\u2019institut Smithsonian. 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